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| author |  Feng Tang <feng.tang@intel.com>
| 2023-01-04 14:06:04 +0800 |
|---|---|---|
| committer |  Andrew Morton <akpm@linux-foundation.org>
| 2023-01-18 17:12:54 -0800 |
| commit | bb94429096d090f5e209624d08919a7962d6c4b7 (patch) | |
| tree | a2f1f17b9531beb2d9be91ddcc7f59fc875eef58 /mm/slab.h | |
| parent | selftests/vm: cow: add COW tests for collapsing of PTE-mapped anon THP (diff) | |
| download | linux-bb94429096d090f5e209624d08919a7962d6c4b7.tar.gz linux-bb94429096d090f5e209624d08919a7962d6c4b7.tar.bz2 linux-bb94429096d090f5e209624d08919a7962d6c4b7.zip | |
mm/slab: add is_kmalloc_cache() helper function
commit 6edf2576a6cc ("mm/slub: enable debugging memory wasting of
kmalloc") introduces 'SLAB_KMALLOC' bit specifying whether a kmem_cache is
a kmalloc cache for slab/slub (slob doesn't have dedicated kmalloc
caches).
Add a helper inline function for other components like kasan to simplify
code.
Link: https://lkml.kernel.org/r/20230104060605.930910-1-feng.tang@intel.com
Signed-off-by: Feng Tang <feng.tang@intel.com>
Acked-by: Vlastimil Babka <vbabka@suse.cz>
Acked-by: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Alexander Potapenko <glider@google.com>
Cc: Andrey Konovalov <andreyknvl@gmail.com>
Cc: Andrey Ryabinin <ryabinin.a.a@gmail.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Dmitry Vyukov <dvyukov@google.com>
Cc: Hyeonggon Yoo <42.hyeyoo@gmail.com>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Vincenzo Frascino <vincenzo.frascino@arm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm/slab.h')
| -rw-r--r-- | mm/slab.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/mm/slab.h b/mm/slab.h index 7cc432969945..63fb4c00d529 100644 --- a/mm/slab.h +++ b/mm/slab.h @@ -323,6 +323,14 @@ static inline slab_flags_t kmem_cache_flags(unsigned int object_size, } #endif +static inline bool is_kmalloc_cache(struct kmem_cache *s) +{ +#ifndef CONFIG_SLOB + return (s->flags & SLAB_KMALLOC); +#else + return false; +#endif +} /* Legal flag mask for kmem_cache_create(), for various configurations */ #define SLAB_CORE_FLAGS (SLAB_HWCACHE_ALIGN | SLAB_CACHE_DMA | \ |